Incorporation of acoustic sensors in the regulation of a mobile robot

This article introduces the incorporation of acoustic sensors for the localization of a mobile robot. The robot is considered as a sound source and its position is located applying a Time Delay of Arrival (TDOA) method. Since the accuracy of this method varies with the microphone array, a navigation acoustic map that indicates the location errors is built. This map also provides the robot with navigation trajectories point-to-point and the control is capable to drive the robot through these trajectories to a desired configuration. The proposed localization method is thoroughly tested using both a 900 Hz square signal and the natural sound of the robot, which is driven near the desired point with an average error of 0:067 m.This is an Accepted Manuscript of an article published by Taylor & Francis in Advanced Robotics on 01/01/2019, available online: http://www.tandfonline.com/10.1080/01691864.2019.1573703.”Peer ReviewedPostprint (author's final draft

Incorporación de sensores acústicos en el control de regulación a un punto de un robot móvil

Este artículo describe el método Diferencia de Tiempo de Llegada (TDOA) para estimar la localización de fuentes acústicas en aplicaciones de regulación a un punto de un robot móvil. Al localizar fuentes acústicas con TDOA el error de localización varía dependiendo de la distancia entre la fuente y el arreglo de micrófonos. Como una solución a este problema se propone la generación de un mapa de navegación acústica que indique el comportamiento de los errores de localización dentro de un área de trabajo. Nuestro método presenta la ventaja de que el control propuesto no depende de errores de las variables del robot, sino del gradiente del mapa de navegación acústica. Se realizaron simulaciones, en Matlab, que demuestran la aplicación exitosa del control en tareas de regulación a un punto.Postprint (published version

Incorporation of acoustic sensors in the regulation of a mobile robot

This article introduces the incorporation of acoustic sensors for the localization of a mobile robot. The robot is considered as a sound source and its position is located applying a Time Delay of Arrival (TDOA) method. Since the accuracy of this method varies with the microphone array, a navigation acoustic map that indicates the location errors is built. This map also provides the robot with navigation trajectories point-to-point and the control is capable to drive the robot through these trajectories to a desired configuration. The proposed localization method is thoroughly tested using both a 900 Hz square signal and the natural sound of the robot, which is driven near the desired point with an average error of 0:067 m.This is an Accepted Manuscript of an article published by Taylor & Francis in Advanced Robotics on 01/01/2019, available online: http://www.tandfonline.com/10.1080/01691864.2019.1573703.”Peer Reviewe